Explanation

• When an object reflects all the component colors of light, it appears white.
• This is because the object is reflecting all the wavelengths of visible light, which are then perceived by our eyes as white.
• If an object absorbs all seven colors of light (i.e., all the wavelengths of visible light), it appears black.

Explanation

We use "on" for floors in a building (e.g., on the second floor).

So, "Her apartment is on the second floor" is correct.

Explanation

The Chaukhandi graves are located 29 km east of Karachi, Sindh province of Pakistan.

They are famous for their delicate stone carvings with intricate geometric patterns.

Explanation

Discoverer of Cell: Robert Hook

Robert Hook described the cell as: Basic unit of life

Explanation

Silicon is a chemical element with the symbol Si and atomic number 14.

Silicon dioxide (SiO₂) is the primary component in glass, making it transparent and durable.

It is obtained from sand (quartz).

It is essential in glass manufacturing

Explanation

To motivate others to achieve certain goals is a function of leading.

Leaders inspire and guide individuals or teams toward achieving objectives.

Explanation

Impeccable means ناقابل معافی

Without mistakes means غلطیوں کے بغیر

Explanation

• The principal is the head of the school and holds the major responsibility for school management.
• They are responsible for overseeing the overall functioning of the school, including academic, administrative, and financial aspects.

Explanation

CDMA is a wireless communication technology that allows multiple signals to occupy a single transmission channel using unique codes.

It improves efficiency and security in mobile networks.

Explanation

Epitome means مثال، نمونہ، یا خلاصہ

Example means مثال، نمونہ، یا خلاصہ